SAP Knowledge Base Article - Preview

2317821 - Error CALL 'SAML login' and received empty CONTEXT_REF during SAML logon


SAML 2.0 traces show that SAML Response was parsed and verified successfully. However, call to 'SAML login' fails with some SUBRC different than 0. For example, the trace looks like below:

SAML20 SP (client xxx): NameID xxx (Format XXX) mapped to user ID XXX

SAML20 SP (client xxx): CALL 'SAML login' and received empty CONTEXT_REF (SY-SUBRC = 1)

SAML 2.0 traces can be captured using Security Diagnostic Tool. See the link for more information.



In a NetWeaver ABAP system where SAML 2.0 authentication is used.

  • SAP Netweaver AS ABAP 7.02
  • SAP Netweaver AS ABAP 7.30
  • SAP Netweaver AS ABAP 7.31
  • SAP Netweaver AS ABAP 7.40 and higher


SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0


Error when logging on for external ID. , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , BC-SEC-LGN , Authentication and SSO , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.